EP4583245A2 - Vorrichtung zur beurteilung der batterieleistung und verfahren zur beurteilung der batterieleistung - Google Patents

Vorrichtung zur beurteilung der batterieleistung und verfahren zur beurteilung der batterieleistung Download PDF

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Publication number
EP4583245A2
EP4583245A2 EP25177347.9A EP25177347A EP4583245A2 EP 4583245 A2 EP4583245 A2 EP 4583245A2 EP 25177347 A EP25177347 A EP 25177347A EP 4583245 A2 EP4583245 A2 EP 4583245A2
Authority
EP
European Patent Office
Prior art keywords
battery
model
secondary battery
processing element
model parameters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP25177347.9A
Other languages
English (en)
French (fr)
Other versions
EP4583245A3 (de
Inventor
Ichiro Munakata
Shuntaro Igari
Satoshi Tanno
Hideki Shoji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo System Co Ltd
Original Assignee
Toyo System Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo System Co Ltd filed Critical Toyo System Co Ltd
Publication of EP4583245A2 publication Critical patent/EP4583245A2/de
Publication of EP4583245A3 publication Critical patent/EP4583245A3/de
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
    • H02J7/84—Control of state of health [SOH]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/927—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/96—Regulation of charging or discharging current or voltage in response to battery voltage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present applicant has proposed a technical method that makes it possible to determine the deterioration state of a target secondary battery even when no initial measurement result of the characteristic paramete33rs of the secondary battery itself is available (refer to Patent Literature 1).
  • a present measurement value V (k) of a voltage V of a secondary battery and a present measurement value I (k) of a current I a past value of the voltage V is specified as an initial characteristic estimated value V (0 ⁇ k) according to a multivariable function G that represents an initial characteristic model.
  • the "initial characteristic model” is a model representing the initial characteristics of a reference secondary battery of the same standard as the secondary battery to be subjected to deterioration state determination.
  • an object of the present invention is to provide a device and the like that make it possible to evaluate the performance of a secondary battery while reducing an arithmetic processing load required for identifying the values of model parameters that define a model used for evaluating the performance of the secondary battery.
  • a battery performance evaluation device includes:
  • the battery performance evaluation device in accordance with the present invention determines different battery models as battery models used for evaluating the performance of a target secondary battery depending on whether a designated condition is satisfied or not.
  • the second battery model is determined, which is defined by a plurality of second model parameters that are fewer than a plurality of first model parameters, and is therefore a simpler battery model than the first battery model defined by the plurality of first model parameters (the battery model determined when the designated condition is not satisfied). Consequently, the arithmetic processing load required for identifying the model parameters of a battery model used for evaluating the performance of a target secondary battery is reduced, as compared with the case where the first battery model is established regardless of whether a designated condition is satisfied.
  • a battery performance evaluation device 100 as an embodiment of the present invention illustrated in FIG. 1 is composed of one or a plurality of servers capable of communicating with each of a database 10 and a target device 200 via a network.
  • the battery performance evaluation device 100 evaluates the performance of a secondary battery 220 installed as a power source in the target device 200.
  • the battery performance evaluation device 100 includes a first recognition processing element 111, a second recognition processing element 112, a first arithmetic processing element 121, a second arithmetic processing element 122, a battery performance evaluation element 130, and an information provision element 132.
  • Each of the first recognition processing element 111, the second recognition processing element 112, the first arithmetic processing element 121, the second arithmetic processing element 122, the battery performance evaluation element 130, and the information provision element 132 is composed of a processor (arithmetic processing device), a memory (storage device), an I/O circuit, and the like.
  • the memory or a storage device that is separate therefrom stores and holds various data such as measurement results of the voltage response characteristics of the secondary battery 220 with respect to a designated current, as well as programs (software). For example, each of a plurality of identifiers for distinguishing the type of the secondary battery 220 or the target device 200 provided with the secondary battery 220 (specified by standards and characteristics) is associated with each of a plurality of secondary battery models, and stored and held in the memory.
  • a processor reads necessary programs and data from a memory, and based on the data, performs arithmetic processing according to the programs thereby to perform arithmetic processing or tasks, which will be described later, assigned to the elements 111, 112, 121, 122, 130 and 132.
  • the phrase of each element "recognizing" information means that each element performs any arithmetic processing for preparing information or data required for subsequent arithmetic processing, such as receiving information, retrieving or reading information from an information source such as the database 10, and performing arithmetic processing on basic information thereby to calculate, estimate, specify, identify, or predict information.
  • the target device 200 includes an input interface 202, an output interface 204, a control unit 210, the secondary battery 220, and a sensor group 230.
  • the target device 200 includes any device such as a personal computer, a mobile phone (smartphone), a home appliance, and a moving vehicle such as an electric bicycle, which use the secondary battery 220 as the power source thereof.
  • the secondary battery 220 is, for example, a lithium-ion battery, and may be any other secondary battery such as a nickel-cadmium battery.
  • the sensor group 230 measures the values of parameters required for controlling the target device 200, as well as the voltage response characteristics and the temperature of the secondary battery 220.
  • the sensor group 230 is composed of, for example, a voltage sensor, a current sensor, and a temperature sensor, which output signals corresponding to the voltage, the current, and the temperature, respectively, of the secondary battery 220.
  • the battery performance evaluation device 100 may be installed in the target device 200.
  • a software server (not illustrated) may transmit deterioration determination software to an arithmetic processing unit that constitutes the control unit 210 installed in the target device 200 so as to impart the function as the battery performance evaluation device 100 to the arithmetic processing unit.
  • the first recognition processing element 111 in the battery performance evaluation device 100 recognizes the measurement results of the impedance, such as complex impedance Z, of the secondary battery 220 as various types of reference secondary batteries (STEP112 of FIG. 2 ).
  • the complex impedance Z of a reference secondary battery is measured according to an AC impedance method, and the measurement result is associated with an identifier for distinguishing the type of the reference secondary battery, and registered in the database 10.
  • the complex impedance Z of the secondary battery 220 as a reference secondary battery in a state of not being installed in the target device 200 is measured.
  • the complex impedance Z of the secondary battery 220 as a reference secondary battery in a state of being installed in the target device 200 may be measured.
  • the target device 200 can be connected to a power source, such as a commercial power source, for charging the secondary battery 220, and sinusoidal signals can be output by the power supplied from the power source.
  • the radius of curvature of the substantially semicircular portion in the region of -ImZ > 0 corresponds to the charge transfer resistance of the secondary battery 220.
  • the radius of curvature tends to decrease as a temperature T of the secondary battery 220 increases.
  • the influence of the Warburg impedance of the secondary battery 220 is reflected in the linear portion that rises at approximately 45° in the low frequency region of -ImZ > 0.
  • the first arithmetic processing element 121 determines whether a designated condition is satisfied (STEP114 of FIG. 2 ).
  • the designated condition is, for example, a condition that the designated current applied to the secondary battery 220 as a target second battery is composed of a low frequency current component that is lower than a sampling frequency.
  • the frequency ( ⁇ 1 Hz) corresponding to the place where the linear rise of approximately 45° in the low frequency region of the region of -ImZ > 0 may be adopted as the sampling frequency.
  • a current composed of a low frequency current component corresponding to a charge/discharge current of the secondary battery 220 corresponds to the designated current.
  • a condition or conditions defined as a designated condition or conditions may include a condition that the arithmetic processing load (CPU usage rate or the like) of the first arithmetic processing element 121 is a reference value or more, a condition that the target device 200 is a device in which the required accuracy or urgency of the performance evaluation of the secondary battery 220 is a threshold value or less (e.g., a device in which the degree of functional deterioration attributable to the performance deterioration of the secondary battery 220 is low, such as a smartphone and a personal computer), and/or a condition that the period of time elapsed from the point of time of the previous performance evaluation of the secondary battery 220 to be subjected to a present performance evaluation is less than a designated period of time.
  • a condition that the arithmetic processing load (CPU usage rate or the like) of the first arithmetic processing element 121 is a reference value or more
  • a condition that the target device 200 is a device in which the required accuracy
  • the first battery model is a model that represents a voltage V (z) output from the secondary battery 220 when a current I (z) is input to the secondary battery 220.
  • the measurement results of the voltage response characteristic V (t) and the temperature T of the secondary battery 220 are transmitted from the target device 200 to the battery performance evaluation device 100 by a transmission device constituting the output interface 204 (STEP220 of FIG. 2 ). Further, measurement condition information for specifying the designated current I (t) input to the secondary battery 220 when measuring the voltage response characteristic V (t) may be transmitted to the battery performance evaluation device 100 from the target device 200.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
EP25177347.9A 2021-05-12 2022-03-01 Vorrichtung zur beurteilung der batterieleistung und verfahren zur beurteilung der batterieleistung Pending EP4583245A3 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021080843A JP7214253B2 (ja) 2021-05-12 2021-05-12 電池性能評価装置および電池性能評価方法
PCT/JP2022/008648 WO2022239391A1 (ja) 2021-05-12 2022-03-01 電池性能評価装置および電池性能評価方法
EP22807098.3A EP4318862A4 (de) 2021-05-12 2022-03-01 Vorrichtung zur beurteilung der batterieleistung und verfahren zur beurteilung der batterieleistung

Related Parent Applications (1)

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EP22807098.3A Division EP4318862A4 (de) 2021-05-12 2022-03-01 Vorrichtung zur beurteilung der batterieleistung und verfahren zur beurteilung der batterieleistung

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EP4583245A2 true EP4583245A2 (de) 2025-07-09
EP4583245A3 EP4583245A3 (de) 2025-10-08

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EP22807098.3A Pending EP4318862A4 (de) 2021-05-12 2022-03-01 Vorrichtung zur beurteilung der batterieleistung und verfahren zur beurteilung der batterieleistung
EP25177347.9A Pending EP4583245A3 (de) 2021-05-12 2022-03-01 Vorrichtung zur beurteilung der batterieleistung und verfahren zur beurteilung der batterieleistung

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US (1) US20240377458A1 (de)
EP (2) EP4318862A4 (de)
JP (1) JP7214253B2 (de)
KR (2) KR102862817B1 (de)
CN (1) CN117295960A (de)
CA (1) CA3219970A1 (de)
TW (2) TWI826949B (de)
WO (1) WO2022239391A1 (de)

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JP7540403B2 (ja) 2021-06-29 2024-08-27 株式会社デンソー 電池測定装置及び電池測定方法
JP7775720B2 (ja) * 2022-01-20 2025-11-26 株式会社デンソー 二次電池システム
WO2024134867A1 (ja) * 2022-12-23 2024-06-27 株式会社日立ハイテク 電池診断装置、電池診断方法
WO2024185679A1 (ja) * 2023-03-09 2024-09-12 国立大学法人東海国立大学機構 シミュレーション方法、シミュレーション装置及びプログラム
KR20250041676A (ko) * 2023-09-18 2025-03-26 현대자동차주식회사 배터리의 상태 진단 장치 및 그 방법
JP2025081800A (ja) * 2023-11-16 2025-05-28 株式会社日立製作所 電池診断装置、電池診断方法
CN117634226B (zh) * 2024-01-25 2024-06-18 宁德时代新能源科技股份有限公司 电池设计方法、设备及存储介质
JP2026009576A (ja) * 2024-07-08 2026-01-21 株式会社デンソー 電池状態算出装置、プログラム、電池状態算出装置の制御方法

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WO2022239391A1 (ja) 2022-11-17
TW202244526A (zh) 2022-11-16
JP7214253B2 (ja) 2023-01-30
CA3219970A1 (en) 2022-11-17
JP2022174849A (ja) 2022-11-25
TWI826949B (zh) 2023-12-21
KR102862817B1 (ko) 2025-09-22
TW202346888A (zh) 2023-12-01
EP4318862A4 (de) 2025-04-02
EP4318862A1 (de) 2024-02-07
EP4583245A3 (de) 2025-10-08
CN117295960A (zh) 2023-12-26
KR20230171968A (ko) 2023-12-21
KR20250090390A (ko) 2025-06-19
US20240377458A1 (en) 2024-11-14
TWI850066B (zh) 2024-07-21

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